package com.mmall.service.Impl;

import com.google.common.collect.Lists;
import com.mmall.service.IFileService;
import com.mmall.util.FTPUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.util.UUID;

/**
 * @Author 侯俊杰
 * @Date 2017/11/8
 * @Time 11:37
 **/
@Service("iFileService")
public class FileServiceImpl implements IFileService
{
    private Logger logger = LoggerFactory.getLogger(FileServiceImpl.class);

    public String upload(MultipartFile file,String path)
    {
        String fileName = file.getOriginalFilename();
        //扩展名
        String fileExtensionName = fileName.substring(fileName.lastIndexOf(".")+1);
        String uploadFileName = UUID.randomUUID().toString()+"."+fileExtensionName;//重新命名放在图片服务器上的时候的名字，直接UUID
        logger.info("开始上传文件，上传文件的文件名:{}，上传的路径是{}，新文件名{}",fileName,path,uploadFileName);

        File fileDir = new File(path);
        if(!fileDir.exists())
        {
            fileDir.setWritable(true);
            fileDir.mkdirs();
        }
        File targetFile = new File(path,uploadFileName);


        try
        {
            file.transferTo(targetFile);
            //文件已经上传成功了

            FTPUtil.uploadFile(Lists.newArrayList(targetFile));
            //已经上传到ftp服务器上

            targetFile.delete();
        } catch (IOException e)
        {
            logger.error("上传文件异常",e);
            return null;
        }
        return targetFile.getName();
    }
}
